CN206756683U - A kind of weld seam veining structure nondestructive detection system - Google Patents
A kind of weld seam veining structure nondestructive detection system Download PDFInfo
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- CN206756683U CN206756683U CN201720659994.7U CN201720659994U CN206756683U CN 206756683 U CN206756683 U CN 206756683U CN 201720659994 U CN201720659994 U CN 201720659994U CN 206756683 U CN206756683 U CN 206756683U
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- magnetic field
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- alternating magnetic
- weld seam
- detection system
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Abstract
The utility model discloses a kind of weld seam veining structure nondestructive detection system, including alternating magnetic field generator and magneto-optical sensor, alternating magnetic field generator carries out Alternating Current Excitation to tested weldment, tested weldment is produced alternating magnetic field by alternating magnetic field generator；Magneto-optical sensor is used for tested weldment polarized light-emitting, can receive the polarised light of its reflection and be imaged；The imaging signal of magneto-optical sensor generation, which is transported in processor, to be analyzed and processed.The utility model is applied to Faraday magnetooptical effect, when a branch of polarised light is by magneto-optical film medium with magnetic rotation light property, due to the presence of externally-applied magnetic field, after light is by the medium, the vibration plane of light vibration will be turned over specific angle, and processor which partly goes wrong by the angle-determining of deflection.Detection process need not damage tested weldment, realize Non-Destructive Testing, and alternating magnetic field can be used for the veining structure feature for measuring the workpiece of high magnetic permeability and low magnetic permeability, and applicable scope is wider.
Description
Technical field
Welding quality inspection technical field is the utility model is related to, further relates to a kind of lossless inspection of weld seam veining structure
Examining system.
Background technology
After material welding, the quality of weld seam is the key entirely welded, the difference of the veining structure type of weld seam and point
The difference of cloth influences very big on the quality of welding.The detection of weld seam is particularly important, currently for the detection side of weld seam veining structure
Method mainly includes：The methods of optical microscopy or electron microscopy, x-ray method, supercritical ultrasonics technology.Optical means needs butt-welding fitting to enter
Row cutting, through polishing and corroding carry out metallographic sample preparation, then recycle the line of light microscope or electron microscope observation sample
Type and the distribution of tissue are managed, or shooting imaging carries out graphical analysis, the requirement to operating personnel is higher and needs workpiece
Cutting sampling, destroy the integrality of workpiece；X-ray method using material internal not caused by homoatomic X ray interference and
Strong diffraction real time imagery on some directions, X ray have stronger radiation, certain injury, Er Qiejian can be caused to human body
Degree of testing the speed is slower；Ultrasonography utilizes ultrasonic irradiation material, and the type of material internal veining structure and its distribution are not
With the transmission characteristic that can influence ultrasonic wave, signal pickup assembly reception signal simultaneously analyzes the otherness for drawing weld seam veining structure,
The picture clarity that ultrasonic wave obtains is poor, veining structure feature unobvious.
Utility model content
The utility model provides a kind of weld seam veining structure nondestructive detection system, is examined in the case where not damaging tested weldment
The quality of weld seam is surveyed, is applicable to the weldment of low magnetic permeability, concrete scheme is as follows：
A kind of weld seam veining structure nondestructive detection system, including the alternating magnetic field generation of Alternating Current Excitation is carried out to being tested weldment
Device；For to the tested weldment polarized light-emitting, the magneto-optical sensor of its polarization by reflection photoimaging can be received；The magneto-optic
The imaging signal of sensor, which is transported in processor, to be analyzed and processed.
Alternatively, the detection frequency range of the alternating magnetic field generator is 20~75Hz, and voltage is less than or equal to 15V.
Alternatively, the alternating magnetic field generator is mutually permanently connected with the tested weldment；The alternating magnetic field occurs
Device is located at the both sides of the tested weldment with the magneto-optical sensor respectively.
Alternatively, the alternating magnetic field generator is arranged on motion platform, and the motion platform includes X-axis slide rail and Y
Axle slide rail, the X-axis slide rail and the motor for being respectively arranged to drive it to translate on the Y-axis slide rail.
Alternatively, the magneto-optical sensor is fixed on workbench by adjusting bracket；The magneto-optical sensor and institute
The spacing stated between actual measurement weldment is 1~2mm.
Alternatively, the adjusting bracket includes fixed seat, extension rod and vertical loading board；The fixed seat bottom is fixed on described
On workbench, top is fixedly connected with the extension rod, the end connection vertical loading board of the extension rod；The fixed seat with it is described
It is detachably connected between extension rod, horizontal and vertical position can be adjusted；The extension rod is detachably connected with the vertical loading board,
Horizontal and vertical position can be adjusted.
Alternatively, the alternating magnetic field generator includes U-shaped magnet, around the coil of indirect current on the U-shaped magnet.
The utility model discloses a kind of weld seam veining structure nondestructive detection system, including alternating magnetic field generator and magneto-optic
Sensor, alternating magnetic field generator carry out Alternating Current Excitation to tested weldment, produce tested weldment by alternating magnetic field generator
Alternating magnetic field；Magneto-optical sensor is used for tested weldment polarized light-emitting, can receive the polarised light of its reflection and be imaged；
The imaging signal of magneto-optical sensor generation, which is transported in processor, to be analyzed and processed.
The utility model is applied to Faraday magnetooptical effect, when a branch of polarised light is thin by the magneto-optic with magnetic rotation light property
During film medium, due to the presence of externally-applied magnetic field, after light is by the medium, the vibration plane of light vibration will be turned over specific angle, place
Reason device which partly goes wrong by the angle-determining of deflection.Detection process need not damage tested weldment, realize lossless inspection
Survey, alternating magnetic field can be used for the veining structure feature for measuring the workpiece of high magnetic permeability and low magnetic permeability, and applicable scope is wider.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of concrete structure diagram of the utility model weld seam veining structure nondestructive detection system；
Fig. 2 is the schematic diagram of Faraday magnetooptical effect；
Fig. 3 is imaging schematic diagram of the present utility model.
Including：
Workbench 1, motion platform 2, tested weldment 3, magneto-optical sensor 4, alternating magnetic field generator 5, adjusting bracket 6,
Fixed seat 61, extension rod 62, vertical loading board 63.
Embodiment
Core of the present utility model is to provide a kind of weld seam veining structure nondestructive detection system, is not damaging tested weldment
In the case of detect the quality of weld seam, be applicable to the weldment of low magnetic permeability.
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing and
Specific embodiment, explanation is described in detail to the weld seam veining structure nondestructive detection system of the application.
As shown in figure 1, it is a kind of concrete structure diagram of the utility model weld seam veining structure nondestructive detection system, wherein wrapping
The structures such as alternating magnetic field generator 5, magneto-optical sensor 4 and processor are included, wherein magnetic field generator 5 is used to enter tested weldment 3
Row Alternating Current Excitation, so that tested weldment 3 produces magnetic field, magnetic field generator 5 produces alternating magnetic field, and alternating magnetic field can make low magnetic conductance
The material excitation of rate, such as aluminium alloy etc., thus the veining structure feature of the workpiece for measuring high magnetic permeability and low magnetic permeability,
Applicable scope is wider.Magneto-optical sensor 4 is used for the tested polarized light-emitting of weldment 3 and can receive its polarization by reflection light, root
According to the polarization by reflection photoimaging of reception；Magneto-optical sensor 4 receives polarised light reflected signal and generates image, and picture signal is conveyed
Analyzed and processed into processor, analysis weld seam is with the presence or absence of defect and the feature of fault location.
The utility model make use of Faraday magnetooptical effect, when a branch of incident polarized light is in the material with magnetic domain magnetic moment
Portion transmits or only when material surface reflects, the characteristic of the transmission light such as the polarised light of light wave, phase because magnetic field changes,
This characteristic is referred to as magneto-optic effect.Under the magnetization of the alternating magnetic field exciting bank of corresponding frequencies, high magnetic permeability and low magnetic permeability
Material internal produces induced field, because the difference of the difference of seam organization texture and its distribution causes welded seam area to sense magnetic
Field cause not of uniform size, the angle of polarization of light wave is just different after polarised light reflects on magneto-optic thin film surface, includes weld seam veining structure and believes
The optical signal of breath is received and is imaged by solid state image sensor.As shown in Fig. 2 be the schematic diagram of Faraday magnetooptical effect, it is incident
Polarised light A propagates by magnetic to optically-active medium D, and due to externally-applied magnetic field B effect, outgoing polarization light C turns over certain angle.
As shown in figure 3, being imaging schematic diagram of the present utility model, based on Faraday magnetooptical effect, what LED light source 03 was sent out goes out
Penetrate light and be changed into a branch of polarised light by the polarizer 04, polarised light reflects through speculum 05 and converged by condenser 02, through magnetic
Optical medium 09, through the reflective surface of magneto-optic thin film 010, successively by condenser 02, speculum 05, analyzer 06；Due to light beam
Direction of propagation externally-applied magnetic field is present, and the plane of polarization of light will deflect, and deflection angle is gathered by COMS cameras 07, by changes of magnetic field
Information is converted to the real time imagery of light intensity change, is gathered by storage device 08.AC magnetic field is by electromagnet 01 and AC coil 012
Produce, butt-welding fitting 011 carries out excitation.
On the basis of such scheme, in order that Detection results are optimal, the preferably detection of alternating magnetic field generator 5
Frequency range is 20~75Hz, includes both ends point value；Voltage is less than or equal to 15V.
Alternating magnetic field generator 5 is mutually permanently connected with tested weldment 3, and tested weldment 3 is arranged at alternating magnetic field generator 5
Top, alternating magnetic field generator 5 is with magneto-optical sensor 4 respectively positioned at the both sides of tested weldment 3.Certainly, alternating magnetic field generator 5
As long as the effect of excitation can be realized, specific set location can be adjusted correspondingly as needed.
Alternating magnetic field generator 5 is arranged on motion platform 2, and motion platform 2 includes X-axis slide rail and Y-axis slide rail, passes through two
Individual slide rail powered motion platform 2 drives magnetic field generator 5 planar to move；X-axis slide rail is mutually perpendicular to Y-axis slide rail, and X-axis is slided
Rail drives its translation with stepper motor respectively with Y-axis slide rail, so as to realize that magnetic field generator 5 moves in X, Y plane.Magneto-optic senses
Device 4 can not cover whole weld seam, drive tested weldment to be moved along the direction of weld seam by X-axis slide rail and Y-axis slide rail, make everywhere
It can be detected by magneto-optical sensor 4.
Specifically, magneto-optical sensor 4 is fixed on workbench 1 by adjusting bracket 6；Adjusting bracket 6 senses magneto-optic
It is 1~2mm that spacing is kept between device 4 and actual measurement weldment 3, comprising both ends point value, so that measurement accuracy is more accurate.
Further, adjusting bracket 6 includes fixed seat 61, extension rod 62 and vertical loading board 63；The bottom of fixed seat 61 is fixed on
On workbench 1, in being vertically arranged, the top of fixed seat 61 is fixedly connected with extension rod 62, and extension rod 62 is in horizontally disposed, its end
End connection vertical loading board 63；Vertical loading board 63 keeps vertical, bottom connection magneto-optical sensor 4.Can between fixed seat 61 and extension rod 62
Dismantling connection, the level and vertical position of extension rod 62 can be adjusted；Extension rod 62 is detachably connected with vertical loading board 63, can be adjusted
Save the level and vertical position of vertical loading board 63.Fixed seat 61, extension rod 62 and the three of vertical loading board 63 set multistage respectively in axial direction
Connecting portion, adjustment is realized by different plug-in positions, it is final to change the location of magneto-optical sensor 4.
Alternating magnetic field generator 5 includes U-shaped magnet, around the coil of indirect current, the opening of U-shaped magnet on U-shaped magnet
Place is close to tested weldment.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice, can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
1. a kind of weld seam veining structure nondestructive detection system, it is characterised in that including carrying out Alternating Current Excitation to being tested weldment (3)
Alternating magnetic field generator (5)；For to tested weldment (3) polarized light-emitting, its polarization by reflection photoimaging can be received
Magneto-optical sensor (4)；The imaging signal of the magneto-optical sensor (4), which is transported in processor, to be analyzed and processed.
2. weld seam veining structure nondestructive detection system according to claim 1, it is characterised in that the alternating magnetic field occurs
The detection frequency range of device (5) is 20~75Hz, and voltage is less than or equal to 15V.
3. weld seam veining structure nondestructive detection system according to claim 2, it is characterised in that the alternating magnetic field occurs
Device (5) is mutually permanently connected with the tested weldment (3)；The alternating magnetic field generator (5) and the magneto-optical sensor (4) point
Not Wei Yu the tested weldment (3) both sides.
4. weld seam veining structure nondestructive detection system according to claim 3, it is characterised in that the alternating magnetic field occurs
Device (5) is arranged on motion platform (2), and the motion platform (2) includes X-axis slide rail and Y-axis slide rail, the X-axis slide rail and institute
State the motor for being respectively arranged to drive it to translate on Y-axis slide rail.
5. weld seam veining structure nondestructive detection system according to claim 4, it is characterised in that the magneto-optical sensor
(4) it is fixed on by adjusting bracket (6) on workbench (1)；Between the magneto-optical sensor (4) and the tested weldment (3)
Spacing be 1~2mm.
6. weld seam veining structure nondestructive detection system according to claim 5, it is characterised in that the adjusting bracket (6)
Including fixed seat (61), extension rod (62) and vertical loading board (63)；Fixed seat (61) bottom is fixed on the workbench (1)
On, top is fixedly connected with the extension rod (62), the end connection vertical loading board (63) of the extension rod (62)；The fixed seat
(61) it is detachably connected between the extension rod (62), horizontal and vertical position can be adjusted；The extension rod (62) and institute
State vertical loading board (63) to be detachably connected, horizontal and vertical position can be adjusted.
7. weld seam veining structure nondestructive detection system according to claim 6, it is characterised in that the alternating magnetic field occurs
Device (5) includes U-shaped magnet, around the coil of indirect current on the U-shaped magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659994.7U CN206756683U (en) | 2017-06-07 | 2017-06-07 | A kind of weld seam veining structure nondestructive detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659994.7U CN206756683U (en) | 2017-06-07 | 2017-06-07 | A kind of weld seam veining structure nondestructive detection system |
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| Publication Number | Publication Date |
|---|---|
| CN206756683U true CN206756683U (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720659994.7U Expired - Fee Related CN206756683U (en) | 2017-06-07 | 2017-06-07 | A kind of weld seam veining structure nondestructive detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036973A (en) * | 2017-06-07 | 2017-08-11 | 广东工业大学 | A kind of weld seam veining structure nondestructive detection system |
| CN108526745A (en) * | 2018-06-27 | 2018-09-14 | 苏州瑞耀三维科技有限公司 | A kind of laser welded seam detection device based on magneto-optical sensor |
-
2017
- 2017-06-07 CN CN201720659994.7U patent/CN206756683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036973A (en) * | 2017-06-07 | 2017-08-11 | 广东工业大学 | A kind of weld seam veining structure nondestructive detection system |
| CN108526745A (en) * | 2018-06-27 | 2018-09-14 | 苏州瑞耀三维科技有限公司 | A kind of laser welded seam detection device based on magneto-optical sensor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20210607 |